Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,047 real decisions tell us about rear extension outcomes in Sunderland.
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Rear extensions sit in the middle of the pack nationally. They're common enough that councils have clear precedent — but that cuts both ways. If your neighbours have been refused, that precedent works against you too.
| # | Ward | Decisions | Approved | Rate |
|---|---|---|---|---|
| 1 | Fulwell | 5 | 5 | 100.0% |
Two houses on the same street can get different outcomes.
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Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Sunderland.
| Type | Decisions | Rate |
|---|---|---|
| Wraparound Extension | 86 | 97.7% |
| Conservatory | 150 | 97.3% |
| Rear Extension | 1,047 | 95.5% |
| Side Extension | 777 | 94.7% |
| Extension (General) | 1,435 | 94.6% |
| Garage / Parking | 1,090 | 92.2% |
| Front Extension | 144 | 91.0% |
| Basement | 32 | 90.6% |
| Flat Conversion | 21 | 90.5% |
| New Build | 725 | 90.3% |
| Outbuilding | 171 | 88.9% |
| Loft Conversion | 53 | 86.8% |
| Annex | 24 | 83.3% |
| Change of Use (Residential) | 713 | 80.9% |
| Dormer | 263 | 79.8% |
| HMO | 51 | 52.9% |
47 rear extension applications in Sunderland have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A free, property-specific report shows you what gets approved — and what gets refused — near your property.
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